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RalphAbejuela

Fullstack Developer / Mandaluyong, PH

I build fullstack web apps where your data never leaves your device. TypeScript, Node.js, and on-device ML. No server, no uploads.
View Projects Resume

Portrait of Ralph Luis Abejuela
01

Featured Works

All Projects

JUL 2026 – PRESENT

Your job applications, parsed entirely in your browser.

  • Parses LinkedIn, Indeed, and 50+ ATS email patterns into a structured application timeline.
  • Client-only architecture: OAuth tokens, email data, and ML inference never leave the browser.
  • Unknown sender? An on-device Transformers.js classifier handles it without shipping your mail to any server.
GITHUB WEBSITE

REACT · TYPESCRIPT · GMAIL API · TRANSFORMERS.JS · DEXIE.JS

ejobtrack dashboard showing parsed job application statuses
ejobtrack

FEB 2025 – NOV 2025

Warehouse management system for a government agency in Albay.

  • Built and shipped inventory management, automated report generation, and a Facebook chatbot that replaced manual pricing inquiries.
  • Deployed with CI/CD: GitHub Actions builds, SSH deploy, Nginx.

REACT · NODE.JS · TYPESCRIPT · POSTGRESQL · DOCKER · NGINX

MAR 2024 – APR 2024

1st place campus, 2nd place cluster finals.

  • Led a 3-person team to 1st place building a movie reservation app.
  • Secured 2nd place in STI cluster finals against 8 schools.

JAVA · ANDROID STUDIO

02

Experience

Backend Developer Intern · Department of Science and Technology Region V

FEB 2026 – MAY 2026

▸ Legazpi City, Albay

  • Led a 3-person OJT team building REST API microservices in TypeScript and Node.js, including a strategic planning CRUD service.
  • Refactored microservices from Clean Architecture to MVC patterns, improving long-term maintainability.
  • Integrated PostgreSQL, containerized services with Docker, and wrote unit tests with Jest.

Treasurer · CSC STI College Legazpi

NOV 2022 – JUN 2023

▸ Legazpi City, Albay

  • Processed and tracked council expenditures with 100% accuracy in financial records.
  • Collected and reconciled event fees from 157 students.
03

Power List

Languages

  • TypeScript
  • JavaScript
  • Java
  • Python
  • SQL (PostgreSQL)
  • HTML/CSS

Frameworks

  • React
  • Next.js
  • Node.js
  • Jest

DevOps & Cloud

  • Docker
  • GitHub Actions
  • Virtual Machines
  • Linux (Ubuntu)
  • SSH
  • Nginx

Tools & Architecture

  • Git
  • Android Studio
  • Agile/Scrum
  • MVC Architecture
04

Education

STI College Legazpi

Bachelor of Science in Information Technology

Cum Laude1.4 GWA

Sep 2022 – Jun 2026

05

Blog

All Posts

I Audited My Own AI Coding Agent Harness (and the Biggest Win Was Measuring Things I Assumed)

I replayed 40 real sessions of my coding agent and counted what happened: 1,304 tool calls, two retractions, four optimizations I declined to build, a 56% cut to my system prompt, and one feature that ran for days without telling me anything.

I Let an Evolutionary Algorithm Rewrite My AI Skill (Full Story)

How I built skill-optimizer-gepa: an eval set from my real job applications, a scoring harness with hard checks and an LLM judge, and a GEPA run that plateaued, hallucinated a rule, and still ended 12.5 points above my hand-written skill. Every failure included.

Why I Run Local LLMs Instead of Cloud Chatbots

Running local LLMs means private data stays on your machine, zero per-token costs, and full control over models and prompts. Here is why local models are my default for daily AI tooling.

06

Extras

  • AI tools
  • Local LLM models
  • Linux
  • Manga
  • Anime
  • Souls-like games

07 · Final Page

Let's Talk.

Looking for a fullstack developer who ships. Based in Mandaluyong, Metro Manila and Legazpi City, Albay. Open to remote and onsite roles.

Email

abejuela.ralph.balatucan@gmail.com

LinkedIn

in/ralph-abejuela

GitHub

@ralph-abejuela